Propel pencil



Mar. 3. 1 925.

W. M. SAUNDERS PROPEL PENCIL Filed July 21 1921 Jam/009a fii Gnome in longitudinal section;

Patented Mar. 3, 1925 WILMAM MILLER; san'nn nns; or "WATERBURY; oonnno'ricnr, wabs mio j HUGE MANUFACTURING COMPANY, or New YORK;11\T. :Y.;

Toall wh m it may comm:-

Be a known that 1, jwamja h mans, a citizen of the United States'fresidi ng at Waterbury, Connecticut, have "invented certain new and useful Improvements in" Propel Pencils, of'which the following is a full, clear, and exactdescriptionl i I My invention relates topro'pel 'pricilsfand hasfor its object to provide an improved pencil which is economical to manufacture and eflicient in operation. It further has for its object to provides simply constructed pencil which will not be injuredjby co'nt nu: ing to turn the pwp'ermech hism'when'ui follower has reached either limi't of its thrdw, V v y r by I The following is a descriptionpf an em bodiment ofmy invention, reference being, had to the accompanying drawings, in which, n I

Fig. 1 shows a pencil embodying in-' vention, with theoutercasing thereof shown F ig. 2 shows a longitudinal sectitui of the pencil as a whole taken on the line 2 2, -1; r

Fig. 3 shows a section on the line' 3- -8; lQ; a a

Fig.4 shows a section on the lin'e Fig. 2. n Referring more particularly to the draw ings; 1 is a casing having a tapered point portion 2. Withinthis casingis a tubular follower-carrier 8 rigidly secured 'to a support or knob 4 which extendsfrom within the casing to the outside thereof, its outer end being provided with a knurled portion 5 to whch a ring 6 may be connected-asshowni The support is provided with an annular l recess into which the "upper end ofthe ,casing is spun as shown at 7 so as to hold the support in place without interfering with its movement of rotation. The sup-port and follower-carrier are thus held in position. The lower end of the follower-carrier is slightly reduced and is slotted as shown at 8, the jaws thus formed being sufliciently contracted to hug the lead 9 and in such relation to the internal surface of the tapered portion 2 at a point near the extreme lower end thereof as to be in close contact therewith when the lead 9 is inserted; These relations enable the lead to be inserted through the point andresult in holdingthe lead 9 firmly against lateral movement, the

sh ng of'the spring'and i under"slight' 'compressioiij sofas to maint to revolve i f the followencaifrier'jis "thl i A "'CORPORKT'ION or.

Pniiofif 1921." scan 1&5; is e 562.

latest thejaws' he The carr er in the binding 'en'gageme'iit said 'ihilr s1 face of tapered pqrtioilaunuernbgm l conditional. Ttes' ring 14 is slightly if moved from theint'ernal surface; 6 f the portion of the'casiiig so asnb'a tomake ing contact therewith, with "the 'resiil when the followen'reafchesiits lower limit of movement and ,thereaft'ei act Withdraw thelewer endofthe s' na'g f of the tapered 1poi tionf2, the spring is? f1 after 1-evo1vedinthesame directionf r1 the sup-port aisl'revolved in the opposite di; rection, the followerlpermits the seat; and therefore by reason offits eng ment with thespring 14;;is retracted: Wh the follower reaches itsupperniost positi it causes the spring 14: to be empress-"dental; the end 12 of the followerfas the: carrier is? further turned, snaps by the up per' endof the spring. The L mechanism; therefore, caii'l not be injured by turning the suppioif tffl ,to' gether with the follower-carrier centimetre ly to any amount in either direction.

The flange 16 provides a bearing surface engaging the lower face of the support 4- and is revolvable relatively to said support and also relatively to the casing 1, so that when the lower end of the springis withdrawn from its binding engagement the upper end, together Withthe bushing 15, can be revolved with the support 4 relatively to the casing and when the follower is being moved downward to propel the lead, the upper end of the spring is kept from engaement with the lower face of the support 4 so as not to interfere with its movement. The limits of movement of the follower are defined by the tending through the body of said casing and terminating in close relation to the inner surface of said tapered point, a revolva-ble support for said carrier rigldly secured there to and extending from within said casing to the outside thereof, said support having an external lateral annular recess into which the extreme end of said casing projects, a follower within said carrier having a portion extending through the slot therein and a spiral spring within said casing with which said follower portion engages, said spring being of smaller external diameter than the internal diameter of said casing and held by said support so that its lower end is in binding engagement with the internal surface of said tapered point.

2. In a propel pencil, a casing having a tapered point, a slotted tubular carrier extending through the body of said casing and terminating in close relation to the inner surface of said tapered point, a revolvable support for said carrier rigidly secured thereto and extending from within said.

casing to the outside thereof, said support having an external lateral annular recess into'which the extreme upper end of sa d casing projects, a follower within said carrier having a portion extending through the slot therein, a spiral spring within said casing with which said follower portion engages,said spring being of smaller external diameter than the internal diameter of said casing and held by said support so that its lower end is in binding engagement with the internal surface of said tapered point, and a flanged bushing within the upper end of said spring bearing against said support, said support being revolvable relatively thereto and to said casing, said spring being compressible by said follower when at the end of its downward movement so as to be withdrawn from binding engagement with said internal surface of said point, and revolvable relatively to said casing when so compressed.

8. In a propel pencil, a casing having a tapered point, a slotted tubular carrier extending through the body of said casing and terminating in close relation to the inner surface of said tapered point, a revolvable support for saidcarrier rigidly secured thereto and extending from within said casing to the outside thereof, said support having an external lateral annular recess into which the extreme upper end of said casing projects, a follower within said carrier having a portion extending through the slot therein, a spiral spring, within said casing with which said follower portion engages, said spring'being of smaller external diameter than the internal diameter of said casing and held by said support so that its lower end is in'binding engagement with the internal surface of said tapered point, said spring being compressible by the engage ment of said follower with the upper portion thereof so that said follower can be turned by the upper end of said spring, and a flanged bushing in the upper end of said sprmg surround-mg said carrier and hearing against the inner end of said, support,

said casing.

4. A propel pencil having in combination said support being revolvable relatively to a casing composed of a shell tapered at one,

portions of smaller external diameter than the bore of the adjacent portions of the body of said casing, and having an end portion in direct binding engagement with said casing shell.

lVILLIAM MILLLER SAUNDERS. 

